CVE-2025-47385 in Snapdragon Auto
Summary
by MITRE • 03/02/2026
Memory Corruption when accessing trusted execution environment without proper privilege check.
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Analysis
by VulDB Data Team • 03/09/2026
This vulnerability represents a critical memory corruption issue within trusted execution environments that fundamentally undermines the security model of hardware-based isolation mechanisms. The flaw occurs when applications or processes attempt to access trusted execution environment components without proper privilege validation, creating a pathway for unauthorized memory manipulation. Such vulnerabilities are particularly dangerous because they target the very foundations of secure computing environments where sensitive operations are expected to be isolated from regular system processes. The absence of proper privilege checks means that malicious actors can potentially escalate their privileges or corrupt memory structures that should remain protected. This type of vulnerability directly relates to CWE-284 which addresses improper access control and CWE-121 which covers stack-based buffer overflow conditions. The attack surface extends to any system component that relies on trusted execution environments for security isolation, including secure enclaves, hardware security modules, and trusted platform modules. Memory corruption in these contexts can lead to complete system compromise, data leakage, or the execution of arbitrary code within protected environments.
The technical implementation of this vulnerability exploits the fundamental assumption that access to trusted execution environments should be strictly controlled through proper privilege validation mechanisms. When systems fail to enforce these checks, they create opportunities for attackers to manipulate memory locations that contain sensitive cryptographic keys, secure data, or execution contexts that should remain isolated. The flaw typically manifests when legitimate system components attempt to communicate with trusted execution environments, but the privilege validation process either fails to occur or is bypassed entirely. This can happen through improper kernel-level access control, flawed system call interfaces, or inadequate privilege elevation procedures. The memory corruption aspect suggests that attackers can overwrite critical memory structures, potentially leading to denial of service conditions or more sophisticated attacks where memory is manipulated to execute malicious code within the secure environment. Such vulnerabilities often align with ATT&CK technique T1068 which covers local privilege escalation and T1566 which addresses credential access through various attack vectors.
The operational impact of this vulnerability extends far beyond simple memory corruption, as it fundamentally compromises the security guarantees that trusted execution environments are designed to provide. Organizations relying on hardware security features for protecting sensitive data, cryptographic operations, or secure boot processes face significant risk when this vulnerability exists in their systems. The potential for privilege escalation means that attackers could gain access to system-level capabilities that should remain restricted to authorized administrators or secure processes. This vulnerability particularly affects systems where trusted execution environments are used for critical functions such as secure key storage, attestation services, or confidential computing workloads. The exploitation of such flaws can result in complete system compromise, data exfiltration, or the ability to manipulate secure operations that should be isolated from regular system processes. Attackers may leverage this vulnerability to bypass security controls that are specifically implemented to protect against malicious access to sensitive operations, rendering the entire security architecture ineffective. The implications are especially severe in cloud computing environments, confidential computing platforms, or systems handling highly sensitive information where the integrity of trusted execution environments is paramount for maintaining security boundaries and protecting against advanced persistent threats.